There's rumbling in the tech world that Cisco is making a bid to buy hot data center startup Nutanix.

The speculation of Cisco's interest began on Friday when analyst Jared Rinderer published a blog post that indicated such talks were taking place, and could be announced in June.

Rinderer, a senior research analyst for Equity Capital Research Group, didn't indicate the source of such information.

We've reached out to our sources, but could not confirm that any such deal was taking place. We understand that Nutanix CEO Dheeraj Pandey internally told Nutanix employees that it was just a rumor and they should ignore it.

And this would be a really expensive purchase for Cisco, right when it's bringing in a new CEO.

Nutanix raised a whopping $140 million round last summer ($312 million total) on a just over $2 billion valuation.

Cisco would probably need to offer a huge premium over the company's valuation. Nutanix has been gearing up for an IPO and its co-founder CEO dreams of being a huge independent company, the next EMC.

"We have so much more to do and we will take these big giant behemoths head on," Dheeraj Pandey recently told Business Insider.